Peter A. Mahler, MD PHD
Radiation Oncology Physician · Madison, WI
Peter A. Mahler, MD PHD is a radiation oncology physician with a practice address in Madison, Wisconsin, and NPI 1730142258, issued on Apr 7, 2006. Check the license (Wisconsin 29813, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Peter A. Mahler
- Credential
- MD PHD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 29813 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3220 Tallyho LN, Madison, WI 53705
- Phone
- (608) 233-6732
- Enumerated
- Apr 7, 2006
- Record last updated
- Mar 1, 2023
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 153 in Wisconsin → Look up another NPI →
Verify Peter A. Mahler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 29813Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 77.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Peter A. Mahler among 153 radiation oncology physician records in Wisconsin
Peter A. Mahler, MD PHD is one of 153 radiation oncology physician records with a practice address in Wisconsin. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 78% of these records are
- Record last updated2023 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Wisconsin
There are 153 radiation oncology physician records in Wisconsin.
All 153 in Wisconsin → Every provider in Madison → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Scot Callahan, MD, PHDMadison, WI 537051700527959
- Bradley Eckelmann, MD, PHDMadison, WI 537051033799531
- John Floberg, M.D., PH.D.Madison, WI 537051225456981
- Steven Howard, MD PHDMadison, WI 537051124081740
- Randall Kimple, M.D. PH.D.Madison, WI 537051326253998
- Sangjune Lee, MDMadison, WI 537051922652510
- Matthew Witek, MDMadison, WI 537031154651727
- Richard Auchter, MDMadison, WI 537131366404329
Common questions
What is Peter A. Mahler, MD PHD's NPI number?
Peter A. Mahler, MD PHD's National Provider Identifier (NPI) is 1730142258, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter A. Mahler, MD PHD located?
The NPPES record lists a practice address at 3220 Tallyho LN, Madison, WI, 53705. Phone: (608) 233-6732. Providers update this record themselves, so call before visiting.
How can I verify Peter A. Mahler, MD PHD's license?
NPPES lists Wisconsin license number 29813, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Peter A. Mahler, MD PHD's MIPS final score?
The 2023 MIPS final score is 77.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.